摘要
在DS-CDMA系统多径衰落信道中把广义旁瓣相消(GSC)算法应用到盲空时多用户检测中,GSC算法把自适应约束优化问题简化为非约束优化问题,同时抑制了码间串扰和多址干扰。最后应用两种不同的方法进行多径合并,并对其进行比较,仿真结果表明了GSC算法在盲空时多用户检测中的有效性。
In this paper,the Generalized Sidelobe Canceler(GSC) algorithm is developed for blind space -time multiuser detection in DS- CDMA system with multipath fading. The CSC algorithm turns the constrained optimization problem into the non - constrained problem, Intersymbol Interference (ISI), Multiple Access Interference (MAI) simultaneously suppressed. The two methods are adopted in the multipath combining and are compared. The algorithm is verified by following simulation.
出处
《现代电子技术》
2007年第7期64-66,共3页
Modern Electronics Technique
关键词
多径衰落
空时处理
盲多用户检测
DS—CDMA
multipath fading channel
space - time processing
blind multiuser detection
DS - CDMA